Problems

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Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 4460 673 15% 0.01 885 458 52% 7.2
10 Kinds of People 7602 1592 21% 0.01 1323 902 68% 5.5
2048 5168 2469 48% 0.00 2348 2012 86% 2.2
3D Printed Statues 4079 1974 48% 0.00 1857 1668 90% 2.0
3D Printer 363 72 20% 0.00 122 62 51% 7.2
3-Sided Dice 1498 110 7% 0.00 237 84 35% 8.7
4 thought 4678 1569 34% 0.00 1574 1309 83% 2.9
A1 Paper 3238 949 29% 0.00 931 728 78% 3.6
Aaah! 15898 7704 48% 0.00 6805 6327 93% 1.5
Abandoned Animal 913 162 18% 0.03 201 143 71% 5.2
ABC 5714 2639 46% 0.00 2526 2294 91% 1.7
Above Average 2648 1147 43% 0.00 1176 1058 90% 1.9
A+B Problem 4310 392 9% 0.04 636 212 33% 8.4
A Brief Gerrymander 111 25 23% 0.15 26 17 65% 7.0
Abstract Art 187 45 24% 0.00 43 31 72% 6.9
Absurdistan Roads II 484 172 36% 0.00 165 111 67% 6.9
Absurdistan Roads III 1144 295 26% 0.02 285 207 73% 6.0
A Classy Problem 5306 1434 27% 0.01 1205 940 78% 4.0
ACM Contest Scoring 4272 2651 62% 0.00 2324 2194 94% 1.5
Adding Words 5515 1237 22% 0.00 1316 1003 76% 3.9
A Different List Game 4861 347 7% 0.00 599 116 19% 9.2
A Different Problem 18223 7111 39% 0.00 6556 5687 87% 2.3
Adjoin the Networks 1340 350 26% 0.00 309 235 76% 6.0
Administrative Difficulties 578 126 22% 0.03 160 99 62% 6.6
Advanced Causal Measurements 30 10 33% 0.10 12 10 83% 6.2
Adventures in Moving -- Part IV 596 189 32% 0.00 176 149 85% 4.7
A Favourable Ending 972 213 22% 0.00 233 160 69% 5.1
A Feast For Cats 1070 383 36% 0.19 261 212 81% 5.0
Air Conditioned Minions 2648 736 28% 0.00 810 592 73% 4.5
Airline Hub 1330 226 17% 0.01 261 141 54% 7.0
Airport Coffee 668 144 22% 0.09 134 103 77% 6.3
Airport Construction 2548 337 13% 0.02 261 136 52% 7.3
Airport Logistics 45 10 22% 0.00 16 10 62% 7.7
Airports 240 74 31% 0.13 72 53 74% 6.3
Akcija 3785 1641 43% 0.01 1466 1285 88% 2.0
Aladin 677 59 9% 0.10 103 19 18% 8.9
Alchemy 92 13 14% 0.03 25 13 52% 8.1
Alea iacta est 29 11 38% 0.34 14 11 79% 6.9
Alice in the Digital World 1330 333 25% 0.01 362 271 75% 4.3
Alien Numbers 1510 773 51% 0.00 756 678 90% 2.1
A List Game 5271 1571 30% 0.00 1505 1256 83% 3.0
All about that base 2296 902 39% 0.00 859 722 84% 2.7
All Different Directions 735 326 44% 0.00 301 263 87% 2.6
Allergy Test 296 98 33% 0.00 90 49 54% 8.1
All Friends 706 133 19% 0.00 114 58 51% 9.0
All Just A Dream 1107 247 22% 0.05 186 132 71% 6.2
All Pairs Shortest Path 5692 973 17% 0.02 665 462 69% 5.5
Almost Perfect 4108 935 23% 0.00 1009 784 78% 3.6
Almost Union-Find 4392 708 16% 0.02 671 358 53% 7.0
Alphabet 591 294 50% 0.00 301 256 85% 2.8
Alphabet Spam 4335 2786 64% 0.00 2089 2005 96% 1.4
Alternative Bracket Notation 190 79 42% 0.00 83 69 83% 5.3
Altruistic Amphibians 213 48 23% 0.25 52 32 62% 7.1
Amalgamated Artichokes 2997 1348 45% 0.01 1194 1039 87% 2.6
Amanda Lounges 1110 303 27% 0.03 269 207 77% 5.7
A Mazing! 1209 295 24% 0.09 136 101 74% 5.3
Amazing Race 253 65 26% 0.39 72 52 72% 6.6
Ambiguous Result 188 43 23% 0.03 65 41 63% 7.8
Amsterdam Distance 798 316 40% 0.00 359 286 80% 2.7
A Multiplication Game 263 63 24% 0.00 87 60 69% 5.9
Anagram Counting 2162 831 38% 0.00 808 667 83% 3.1
Andrew the Ant 185 48 26% 0.06 61 44 72% 5.4
A New Alphabet 7451 3401 46% 0.00 3200 2964 93% 1.8
Animal Classification 1232 253 21% 0.03 242 150 62% 6.9
An Industrial Spy 1180 611 52% 0.02 467 402 86% 3.2
Another Brick in the Wall 1594 831 52% 0.00 813 739 91% 2.0
Another Candies 5237 1418 27% 0.00 1497 1228 82% 2.8
Another Dice Game 80 59 74% 0.00 51 48 94% 3.4
Another Query on Array Problem 989 125 13% 0.05 218 92 42% 7.6
Anthony and Cora 608 149 25% 0.00 179 121 68% 5.8
Anthony and Diablo 1319 459 35% 0.00 517 439 85% 2.6
Antiarithmetic? 793 128 16% 0.01 211 102 48% 8.0
Ants 1797 823 46% 0.00 614 539 88% 2.5
Apaxiaaaaaaaaaaaans! 7333 4498 61% 0.00 4047 3890 96% 1.3
Apparatus 574 150 26% 0.01 113 86 76% 5.3
Apple Market 429 85 20% 0.07 95 51 54% 7.5
Apples, Cherries, and Mangos 327 101 31% 0.02 95 72 76% 6.6
Aquarium Tank 353 103 29% 0.00 92 72 78% 5.6
Aqueduct Construction 112 37 33% 0.01 33 27 82% 7.0
A Question of Ingestion 751 173 23% 0.00 172 128 74% 5.7
Arable Area 223 50 22% 0.04 52 32 62% 7.8
A Rational Sequence 1069 344 32% 0.00 384 270 70% 5.3
A Rational Sequence 2 1177 854 73% 0.00 792 753 95% 1.6
A Rational Sequence (Take 3) 485 413 85% 0.00 301 293 97% 1.7
Arbitrage? 1649 317 19% 0.02 235 187 80% 3.6
Arcade! 1112 199 18% 0.01 191 136 71% 6.2
Arctic Network 1085 386 36% 0.00 323 258 80% 4.6
A Real Challenge 4387 2140 49% 0.00 2092 1953 93% 1.6
Area of Effect 79 9 11% 3.16 14 7 50% 8.0
Arithmetic 1575 456 29% 0.00 457 356 78% 3.6
Army Strength (Easy) 2431 1243 51% 0.00 1119 1008 90% 2.0
Army Strength (Hard) 3047 1553 51% 0.01 1088 963 89% 2.4
Around and Around We Go 34 11 32% 0.00 20 10 50% 8.5
Around the track 38 8 21% 0.01 15 6 40% 8.8
Around the Track 261 33 13% 0.00 52 23 44% 8.3
Arranging Hat 228 89 39% 0.05 85 73 86% 5.2
Arranging Wine 154 42 27% 0.03 44 33 75% 4.9
Arriving on Time 174 56 32% 0.04 54 43 80% 6.4
Artur 291 65 22% 0.06 75 48 64% 6.7
Artwork 817 290 35% 0.06 256 165 64% 6.1